html input date change placeholder code example
Example 1: placeholder in date input html
<input placeholder="Date" class="textbox-n" type="text" onfocus="(this.type='date')" id="date">
Example 2: add custom placeholder in input type date
<input type="text" placeholder="Birth Date" onfocus="(this.type='date')" onblur="if(this.value==''){this.type='text'}">